My first build. Fielded once. It all works & chrono’d at 270 with .3 BBs and about 330 w .2s. Very light with a much smoother slide and lighter recoil. EXTREMELY ACCURATE up to about 150 yards. Airsoft Masterpiece: Steel hammer set ~$60 Grip screw~$16 .45 acp Outer barrel~$120 Infinity style aluminum Frame~$260 Cowcow: Rm1 guide rod~$37 Cnc aluminum blow back housing~$50 Aluminum high heel magwell~$50 Aluminum high flow nozzle~$75 Type a modular trigger~$16 Trigger base~$15 Aluminum Mag base~$20 LA CAPA CUSTOMS: Grip safety~$55 Mag catch~$35 Laylax nine ball short stroke recoil spring~$10 Unicorn 6.03 inner barrel and bucking~$30 Dr. Black type 901 slide~$125